The invention provides a small-
diameter tube
extrusion solder sealing executive device with the
pressure balance function. According to the small-
diameter tube
extrusion solder sealing executive device with the
pressure balance function, two clamping heads and two
electrode tips are fixed to four quick-changing bases supported by insulating plates which are fixedly connected with air cylinders respectively through clamp nuts, the clamping heads and the
electrode tips are driven by the four air cylinders respectively, each clamping head and a sealing cavity body are connected into a whole, a sealing cavity is formed after the two sealing cavity bodies
close up,
extrusion solder sealing of a small-
diameter tube is achieved in the sealing cavity, the sealing cavity is tightly clamped by a clamp with a safety structure, the sealing cavity is sealed in the mode of combination among a high-pressure sealing cavity, an integrated rubber sealing
gasket and a local Teflon sealing
gasket, the requirement of the two
electrode tips for movement is met through two conductive soft
copper strips,
gas supply is carried out on the sealing cavity through a high-pressure gas
path system, and it is ensured that balance between the
internal pressure and the
external pressure of the small-diameter tube in the
welding process.